package com.example.demo.web.controller;

import com.example.demo.bean.Article;
import com.example.demo.service.IArticleService;
import com.example.demo.utils.ExcelUtils;
import com.example.demo.utils.Message;
import com.example.demo.utils.MessageUtil;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletResponse;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@RestController
@Validated
@RequestMapping("/article")
public class ArticleController {
    @Autowired
    private IArticleService articleService;

    @ApiOperation(value = "导入到Excel中", notes = "注意！测试的时候请将地址粘贴到浏览器地址栏测试", produces = "article/octet-stream")
    @GetMapping("download")
    @ApiImplicitParams({
            @ApiImplicitParam(name = "name", value = "名称", paramType = "query"),
    })
    public void download(HttpServletResponse response,String title,String brief) throws Exception {
        // 1. 查询数据
        List<Article> list = articleService.query(title,brief);
        // 2. 将数据填充excel导出
        // 2.1 excel头部数据
        String[] headList = new String[] { "文章名", "简要说明" };
        // 2.2 属性
        String[] fieldList = new String[] { "title", "brief"};
        // 2.3 数据列，需要转化
        List<Map<String, Object>> dataList = new ArrayList<>();
        for (Article app : list) {
            // 每一个map相当于是一行数据，一行数据中多列
            Map<String, Object> map = new HashMap<>();
            map.put("title", app.getTitle());
            map.put("brief",app.getBrief());
            // dataList表示所有行
            dataList.add(map);
        }
        // 2.4 导出文件名
        String excelName = "articles";
        // 3. 调用工具方法导出Excel
        ExcelUtils.createExcel(response, excelName, headList, fieldList, dataList);
    }


    @GetMapping("query")
    @ApiImplicitParams({
            @ApiImplicitParam(name="title",value = "文章名",required = false,paramType = "query"),
            @ApiImplicitParam(name = "brief",value = "简要说明",required = false,paramType = "query")
    })
    public Message query(String title, String brief){
        List<Article> list=articleService.query(title,brief);
        return MessageUtil.success(list);
    }
    @PostMapping("saveOrUpdate")
    public Message saveOrUpdate(Article article){
        articleService.saveOrUpdate(article);
        return MessageUtil.success("操作成功");
    }
    @DeleteMapping("deleteById")
    @ApiImplicitParams({
            @ApiImplicitParam(name="id",value="用户编号",required = true,paramType = "query")
    })
    public Message deleteById(long id){
        articleService.deleteById(id);
        return MessageUtil.success("删除成功");
    }
}


